I took the boat out yesterday and it was a blast (and not the exploding type!)
https://youtu.be/waS17aAqpVE?t=77
One problem was that the motor was difficult to start. In the video (at around 1:15), my first two pull were at the "start" position. Then I turned it to about 3/4 throttle, and the motor started two pulls after that.
When I flushed the motor at the boat ramp, it again refused to start at the "start" position. I tried like 10 pulls and nothing happened. I then turned to 3/4 throttle and it started in 2 pulls.
Then, I stopped and restarted the motor several times, and it started on the first pull every time, at the "start position", even without choke. I suspect that if I tilt up the motor and lower it again, something messed up the carburetor
I did pull out the choke, open the fuel vent and turned the fuel selector switch to the correct position before attempting to start the motor.